Valve mechanism for flush tanks



Jan. 21, 1930. w. s. LOCKE 1,744,559

VALVE MECHANISM FOR FLUSH TANKS Filed Oct. 1a, 1928 WITNESSES QB v I I'BY 7 M/vu/au ATTORNEY Patented .lan. 21, 1930 at STATES WILLIAM S. LOCKE, 0F PORTLAND, OREGON, ASSIGNOR 0F ONE-HALF T0 PORTLAND REALTY AND TRUST 60., OF PORTLAND, GREGQIE, A CORPORATION (3F OEEGON VALVE MECHANISM 11' 0B, FLUSH TANKS Application filed October 16, 1928. Serial No. 312,845.

This invention relates to valve operating mechanism for controlling the admission of water to flush tanks.

An obj cct of the invention is the provision of a valve for controlling the flow of water to the flush tank which is freely movable in a chamber and re ained in the closed position by the pressure oi": water.

A further object of the invention is the provision of an automatically controlled inlet valve to the flush tank which is normally retained on its seat and inclosed position by the pressure of water, in connect-ion with a battle carried by the releasing means for the valve for directing the water entering the tank in a downwardly inclined direction.

This invention will be best understood from aconsideration of the following detailed description, in connection with the accompanying drawings; nevertheless, it is to be understood that the invention is not confined to the disclosure, being susceptible of such changes and modifications as shall define no material departure from the salient features of the invention as expressed in the appended claim.

In the drawings Figure 1 is vertical longitudinal section of the flush tank constructed according to the principles of my invention,

Figure 2 is a fragmentary plan view of the inlet valve controlling means,

Figure 3 is a fragmentary vertical section of the valve mechanism taken along the line 33 of Fig. 1.

Referring more particularly to the drawings 10 designates a flush tank having a re movable cover 11 and a base member 12 from .Vlllt'll depends the discharge pipe 13, and an inlet pipe 14.

The tank is provided with a valve seat adapted to be engaged by the usual ball valve 21 which is moved from its seat by means of links 22 and 23, and a lever 24, which is adapted to be manually operated in the usual manner. The pipe 14 is held in position on the bottom of the tank by means of nuts and 31 threaded onto the inner projecting end 32 of the pipe 14. A valve cas- 33 has an open end threaded onto the end 32 of the pipe 14 and contains a ball valve 34 freely movable in the casing 33. A bolt 35 is located within the casing and spaced above the top of the inner end or" the pipe 14 in order to prevent the ball from resting upon the open end of the pipe 14 or for maintaining the ball valve out of contact with the upper end of the pipe so that water will at all times maintain a flow into the casing 33. In the upper end of the casing 33 is threaded a plug 36 having a passage 37 con necting the casing with the interior of the tank 10. The inner end of the plug is provided with a valve seat 38 adapted to be engaged by the valve 34 for cutting off communication between the casing 33 and the tank 10.

A lever 40 is pivotally connected at 41 to an arm 42 which is formed integrally with the casing The lever 40 has a plunger 43 rigidly connected therewith by means of a threaded portion 44 on the stem and cooperating nuts. The threaded portion 44 of the plunger 43 has a nut 45 cooperating to secure a curved bathe 46 on the stem rigidly to the lever 40. A float 47, of any approved design, is secured to the outer end of the lever and is adaoted to be elevated by means of the water flowing into the tank 10.

The operation of my device is as follows: The lever 24 is manually operated in the usual manner for elevating the valve 21 from its seat 20 thereby releasing the water in the tank 10 to the discharge pipe 13. As the level of the water in the tank descends the float 42 is lowered thereby causing the lever 40 to move the plunger 43 downwardly and force the ball valve 34 from its seat 38. At

this time the water from the pipe 14 rushes through the pipe 37 and against the bathe 46 which directs it downwardly to the bottom of the tank. v

As soon as the water in the tank 10 has lowered sutliciently the valve 21 will be reseated and the constant stream of water flowing into the tank from the pipe 14 and through the passage 37 will again elevate the float 42, until the plunger 43 is moved out of engagement with the valve 34, At this time the parts are in position for further action.

I claim 2- In a flush tank, an inlet pipe, a valve casing in communication with the inlet pipe, said casing having a passage for placing the easing in communication With the tank, a valve freely movable in the casing and adapted to engage the inner end of the passage for cutting ofi communication between the casing and the tank, a pivotal'ly mounted lever, 21 float at the free end of the lever, a plunger carried by the lever for forcing the valve away from the passage When the float is lowered, a baiile carried by the'plunger and tilted at an angle to the horizontal for directing the water from the passage in the casing towards the bottom of the tank, the position of said bafiie being vari'edi'n accordance with the varying positions of the plunger.

WILLIAM S. LO G'KE. 

